From “Chiaro: The Magical Mobster’s Code” by Akima Wren

Magical mobsters operate under their strict code of chiaro, or invisibility. Once becoming a made man, mobsters are expected to never be visible to others again through the use of spells, invisibility cloaks, and potions. This includes in the home, as mob spouses are expected to constantly insist that they “didn’t see nothin’.” By remaining invisible, even if they are invisible in a fancy suit, magic mobsters retain plausible deniability and make it difficult for the authorities to build a case against them.

While some mobsters, especially older dons, believe very strongly in absolute invisibility, to the point of wandering around nude, most do not bother with this and wear visible clothing. Thanks to the extreme priciness of invisible clothing, the only mobsters rich enough to afford it are also, ironically, those who insist on the “old ways” of being a nudist, which doesn’t really appeal to younger made men in colder cities. After all, they reason, just because you know that someone is there doesn’t mean you know who.

For their part, the police simply collect fingerprints and match voice waveforms, using physical evidence where eyewitness accounts won’t work for obvious reasons. Surprisingly, this actually makes it easier for snitches to be put into witness protection; all they have to do is become visible and none of their cohorts will recognize them.